Structures Flashcards
Chromatin
The material that holds DNA, and forms chromosomes
Chromosome
Exists in the nucleus of most cells, consists of DNA and carries genetic information
Deoxyribonucleic Acid
DNA. Molecules of genetic info that can copy itself
Metabolism
physical and chemical processing
Organelle
A specialized structure inside of a cell
3 parts of a cell
Membrane, cytoplasm, nucleus
Histology is the study of
Tissues
Epithelial tissue
Covers organs, lines cavities, forms tubes, is the epidermis skin
Connective tissue
Connects and supports other structures. Cartilage, bone, fat
Muscle tissue
Contractile tissues that makes up the muscle
Nervous tissue
Transmits electrical impulses
Organs have at least __ tissues
2
Systems are a group of structures that ___
All do similar functions
Organisms
Largest system organization. A complete living entity capable of independent existence
A body plane is an imaginary panel that divides the body into 2 sections (t/f)
True
Coronal plane
Divides the body into anterior and posterior
transverse plane
Divides the body into top and bottom
Midsagittal plane
Divides body into right and left
Cranial cavity is formed by the
Skull
spinal cavity is formed by the
Spine
Dorsal cavity includes the ___
cranial and spinal cavities
Meninges
a membrane that covers the spinal and cranial cavities
Thoracic cavity
lungs and heart
Abdominal cavity
liver, kidneys, stomach, intestines
